US7202980B2 - Mounting structure for inverter circuit board for light source lamp of image reader - Google Patents

Mounting structure for inverter circuit board for light source lamp of image reader Download PDF

Info

Publication number
US7202980B2
US7202980B2 US10/106,158 US10615802A US7202980B2 US 7202980 B2 US7202980 B2 US 7202980B2 US 10615802 A US10615802 A US 10615802A US 7202980 B2 US7202980 B2 US 7202980B2
Authority
US
United States
Prior art keywords
carriage
light source
inverter circuit
source lamp
original
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/106,158
Other versions
US20020141167A1 (en
Inventor
Eiichi Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujinon Corp
Original Assignee
Fujinon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujinon Corp filed Critical Fujinon Corp
Assigned to FUJI PHOTO OPTICAL CO., LTD reassignment FUJI PHOTO OPTICAL CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYASHI, EIICHI
Publication of US20020141167A1 publication Critical patent/US20020141167A1/en
Assigned to FUJINON CORPORATION reassignment FUJINON CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: FUJI PHOTO OPTICAL CO., LTD.
Priority to US11/561,091 priority Critical patent/US20070086066A1/en
Application granted granted Critical
Publication of US7202980B2 publication Critical patent/US7202980B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
    • H04N1/0287—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array using a tubular lamp or a combination of such lamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/1013—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
    • H04N1/1039—Movement of the main scanning components
    • H04N1/1052—Movement of the main scanning components of a mirror
    • H04N1/1056—Movement of the main scanning components of a mirror of two or more separate mirror arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00519—Constructional details not otherwise provided for, e.g. housings, covers
    • H04N1/00543—Allowing easy access, e.g. for maintenance or in case of paper jam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/1013—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02454—Element mounted or supported
    • H04N2201/02462—Illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02466—Mounting or supporting method
    • H04N2201/02468—Mounting or supporting method using screws
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02452—Arrangements for mounting or supporting elements within a scanning head
    • H04N2201/02479—Mounting or supporting means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
    • H04N2201/02495—Constructional details not otherwise provided for, e.g. for ease of assembly, allowing access to the scanning elements, integrated reinforcing members

Definitions

  • the present invention relates to a stationary original type image reader and particularly to a mounting structure for a drive circuit for the light source lamp.
  • the inverter circuit and the light source lamp are mounted on a carriage which is movably provided in the casing of the image reader.
  • a structure for mounting the inverter circuit on the carriage was previously proposed by the applicant of the present invention, in the image reader of Japanese Patent Application No. 11-263025.
  • the inverter circuit is disposed at end portions of the carriage in the longitudinal direction thereof, and further the components of the inverter circuit are divided and disposed at both end portions.
  • the light source lamp or the inverter circuit it is sometimes necessary for the light source lamp or the inverter circuit to be replaced because they have reached their life span, or because they have been damaged.
  • the carriage onto which they are mounted has to be removed from the main body of the image reader, and the part which is to be changed has to be removed from the carriage, and then replaced with the new part. This is because the inverter circuit board is fixed with screws onto the base plate of the carriage.
  • the technical means for achieving the above objects is the mounting structure for an inverter circuit board for a light source lamp of an image reader according to this invention, in which the image reader comprises a carriage which moves along an original placed on a platen glass. On the carriage is mounted a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated. The light beams reflected from the original are picked up and an image formed on the original is read, wherein mounting means for mounting onto the carriage an inverter circuit board having an inverter circuit for a light source lamp installed thereon, can be operated from the direction in which the carriage moves.
  • the circuit board In order to replace the inverter circuit for the light source lamp, the circuit board is removed from either of the directions of movement of the carriage and the inverter circuit replaced.
  • the direction for removing the board is set to be one of the directions of movement of the carriage.
  • a heat dissipation plate is mounted to an end portion of the carriage on a side in the direction in which the carriage moves, and the circuit board is removably mounted to the heat dissipation plate.
  • the image reader comprises a carriage which moves along an original placed on a platen glass.
  • a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original is picked up and an image formed on the original is read, and adjusting means are provided for adjusting the intensity of the light beams from the light source lamp in the direction in which the carriage moves.
  • the intensity of the light beams from the light source lamp can be automatically adjusted in accordance with the lightness or darkness of an image formed on the original, but light beams adjustment is necessary in preparation for this.
  • means for adjusting the light beams amount such as a variable resistor, is used in driving the light source lamp. By operating the variable resistor, the light beam intensity can be adjusted. Operation of the light beams amount adjusting means can be carried out from the direction in which the carriage moves. For this reason, adjustment of the light beams amount can be carried out without the need to remove the carriage from the main body of the image reader, and also without the need for removing the inverter circuit board from the carriage.
  • the image reader comprises a carriage which moves along an original placed on a platen glass, and on the carriage is mounted a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated. The light beams reflected from the original are picked up and an image formed on the original is read. The operation of the adjusting means for adjusting the light beams amount of the light source lamp is carried out from above the carriage.
  • the board having the variable resistor assembled thereon is mounted such that the back surface of the variable resistor is at the upper side, and the resistance value is adjusted through a through-hole formed on the base from the back surface side thereof.
  • a mounting structure for an inverter circuit board for a light source lamp in which the replacement of the inverter circuit and the work of adjusting the light beams amount of the light source lamp is reduced.
  • the mounting means for mounting onto the carriage, the inverter circuit board having the inverter circuit, and adjusting means for the light beam source lamp installed thereon can be adjusted from the direction in which the carriage moves.
  • the circuit board can be mounted thereto so as to be removable.
  • the adjustment of the light beams amount can be carried out in the direction of movement of the carriage or from above the carriage.
  • the light beams amount adjusting means is assembled onto the board which the inverter circuit for the light source lamp is installed, and in the case where the light beams adjustment is carried out from above the carriage, a through-hole is formed in the board and operation is carried out from the back side of the board.
  • the operation of the light beams amount adjusting means can be carried out in the direction of movement of the carriage or from above the carriage, and a heat dissipation plate is mounted to one end of the carriage at a side in the direction of movement thereof. Because the inverter circuit board is attached to the heat dissipation plate so as to be removable, the inverter circuit board can be operated from the direction of movement of the carriage. Also, because the inverter circuit board of the light source lamp is mounted to the heat dissipation plate, heat generated from the inverter circuit is effectively diffused.
  • FIG. 1 is a top plan view of a carriage having a mounting structure for an inverter circuit board for a light source lamp according to the present invention
  • FIG. 2 is a front view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention
  • FIG. 3 is a right side exploded view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention, and includes the inverter circuit prior to mounting;
  • FIG. 4 is a top plan view of a carriage having a mounting structure for an inverter circuit board for a light source lamp according to another embodiment of the present invention
  • FIG. 5 is a front view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the embodiment of the present invention shown in FIG. 4 ;
  • FIG. 6 is a right side exploded view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the embodiment of the present invention, and includes the inverter circuit prior to mounting;
  • FIG. 7 is a perspective schematic view for of an image reader equipped the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention.
  • FIG. 7 is a schematic structure of the image reader 1 to which the mounting structure for the inverter circuit board is applied.
  • Two guide plates, 2 b and 2 e which are configured as shelves, are provided at the inner surface of walls 2 a , which walls 2 a extend in the longitudinal direction of a casing 2 of the image reader 1 .
  • a full rate carriage 3 and a half rate carriage 4 are respectively placed on the guide plates 2 b and 2 e and are guided by the guide plates 2 b and 2 e so as to move in the longitudinal direction of the casing 2 .
  • a platen glass (not shown) is mounted on the upper surface of the casing 2 , and originals are placed on this platen glass.
  • a light source lamp 5 such as a fluorescent lamp is mounted on the full rate carriage 3 .
  • the original is irradiated by the light source lamp 5 .
  • an image focusing lens 6 and a photoelectric converter device 7 such as a CCD (Charge Coupled Device) or the like, are provided at an appropriate position on the bottom plate 2 c of the casing 2 .
  • CCD Charge Coupled Device
  • a first reflector (not shown) is provided on the full rate carriage 3 , and on the half rate carriage 4 , a second reflector and a third reflector (also not shown) are provided, and light emitted from the light source lamp 5 and reflected on the original is reflected in sequence at the first reflector, and then at the second reflector and the third reflector in a conventional manner.
  • the light beams are then transmitted through the image focusing lens 6 and impinge upon the photoelectric converter device 7 .
  • An optical path is thus formed by the first reflector and the second and third reflectors, from where the light beams are reflected onto the original until it reaches the photoelectric converter device 7 .
  • the full rate carriage 3 is movable along the entire area of the platen glass.
  • the above optical path from the original to the photoelectric converter device 7 is kept at a constant length even though the full rate carriage 3 moves.
  • the optical path is maintained at a constant length by synchronizing the movement of the half rate carriage 4 with that of the full rate carriage 3 under conditions in which the movement of the half rate carriage 4 is set to almost half of the movement of the full rate carriage 3 .
  • the full rate carriage 3 which mounts on the light source lamp 5 , also carries an inverter circuit for driving the light source lamp 5 .
  • FIG. 1 is a top plan view of the full rate carriage 3
  • FIG. 2 is a front view thereof
  • FIG. 3 is a side view which includes the inverter circuit 10 before it is mounted.
  • the full rate carriage 3 whose frame 8 is appropriately formed, carries the light source lamp 5 ( FIGS. 1 and 3 ) and the inverter circuit 10 on the frame 8 .
  • the inverter circuit 10 is assembled on an inverter circuit board 11 ( FIG. 3 ), which is mounted on a heat dissipation plate 12 , as seen in FIG. 3 .
  • the heat dissipation plate is mounted by fixing screws 13 ( FIG. 1 ) which extend through holes 8 b ( FIG. 2 ) formed in the front side wall 8 a of the frame 8 .
  • the inverter circuit 10 and the light source lamp 5 are conventionally connected by an electrical cable and connector, which are not shown.
  • a variable resistor 16 ( FIGS. 2 and 3 ) is mounted to the inverter circuit board 11 and serves as light beam intensity adjusting means. An operating portion 16 a thereof is clear of the front side wall 8 a , as best seen in FIG. 2 .
  • FIGS. 1 to 3 The effects of the mounting structure for the inverter circuit board 11 for the light source lamp 5 for an image reader having a structure according to the embodiment of the present invention illustrated in FIGS. 1 to 3 is now described.
  • the connector which connects the inverter circuit 10 to the light source lamp 5 is removed, and then the fixing screws 13 are loosened and removed.
  • the heat dissipation plate 12 and the inverter circuit board 11 can then be removed together.
  • the inverter circuit board 11 may be removed from the heat dissipation plate 12 and, the inverter circuit board 11 having assembled thereon the new inverter circuit 10 , can be mounted to the heat dissipation plate 12 .
  • This heat dissipation plate 12 is then fixed to the front side wall 8 a by tightening the fixing screw 13 .
  • a tool 17 such as a screwdriver can be used to turn the operating portion 16 a of the variable resistor 16 .
  • the resistance value of the variable resistor 16 can be changed, and the intensity of the light beams from the light source lamp 5 is thereby changed.
  • the resistance value can therefore be adjusted such that the light beam intensity is appropriate.
  • FIGS. 4 to 6 Another embodiment of the present invention is described in FIGS. 4 to 6 .
  • the parts which are the same as those of the embodiment illustrated in FIGS. 1 to 3 are assigned the same numbers, and thus descriptions thereof are omitted.
  • a variable resistor 18 is mounted as the light beam adjusting means, to the inverter circuit board 11 .
  • the variable resistor 18 is a part of the inverter circuit board 11 , and a through-hole is formed in the portion of the inverter circuit board 11 to which the variable resistor 18 is mounted. An operating portion 18 a of the variable resistor 18 is exposed through this through-hole.
  • a tool 17 such as a screwdriver can be used from above the full rate carriage 3 , to turn operating portion 18 a of the variable resistor 18 .
  • the resistance value of the variable resistor 18 is changed, and the intensity of the light beams from the light source lamp 6 is thereby changed to an appropriate level.
  • the inverter circuit board can be removed from the carriage if the mounting means for the inverter circuit board is applied by operating the mounting means from the direction of movement of the carriage. Further, when the inverter circuit board is to be mounted, it can be mounted by operating the mounting means from the direction of movement of the carriage. As a result, when the inverter circuit is to be replaced, there is no need to remove the carriage from the main body. In addition, it becomes unnecessary to mount the carriage into the main body again after having removed it, and thus it is not necessary to carry out adjustment work after the carriage has been mounted once again. Accordingly, the labor of replacing the inverter circuit is reduced.
  • a heat dissipation plate is mounted on the carriage at an end portion at a side in the direction in which the carriage moves.
  • the circuit board is mounted so as to be removable from the heat dissipation plate, and thus, the heat dissipation plate causes dissipation of heat generated by the inverter circuit to be accelerated, and thus the inverter circuit can be effectively cooled. Accordingly, even when a high intensity light source lamp is required, the inverter circuit can be stably operated. Since operation of the means adjusting the light beam intensity of the light source lamp can be carried out from the direction of movement of the carriage, or from above the carriage, the work of adjusting the intensity of the light beams can be easily carried out.
  • the mounting structure for the inverter circuit board for a light source lamp for an image reader in which operation of the means for adjusting the intensity of the light beams of the light source lamp can be carried out from the direction of movement of the carriage or from above the carriage, and also the mounting means for mounting the inverter circuit board having the inverter circuit for the light source lamp installed on the carriage can be operated from the direction in which the carriage moves.
  • the mounting structure for the inverter circuit board for a light source lamp for an image reader in which operation of the means for adjusting the intensity of the light beams of the light source lamp can be carried out from the direction of movement of the carriage or from above the carriage, and a heat dissipation plate is mounted to the carriage at an end portion thereof at the side in the direction of movement of the carriage, and the inverter circuit board is mounted to the heat dissipation plate so as to be removable therefrom.
  • the inverter circuit board can be operated from the direction of movement of the carriage, and the heat dissipation plate causes heat generated by the inverter circuit to be effectively dissipated. Accordingly, even if a high intensity light source lamp is required, the inverter circuit can be stably operated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Image Input (AREA)
  • Facsimiles In General (AREA)

Abstract

A mounting structure for an inverter circuit board for a light source lamp of an image reader in which mounting means for mounting the inverter circuit board for a light source lamp of an image reader onto a carriage is located to be operated from the direction in which the carriage moves in one embodiment. The inverter circuit and heat dissipation plate are removably mounted to an end of the full rate carriage. In another embodiment, the circuit board is mounted to the top for access from above the carriage.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a stationary original type image reader and particularly to a mounting structure for a drive circuit for the light source lamp.
2. Description of the Related Art
In image readers such as copying machines, scanners and the like, in which original image data which is displayed on a sheet of paper or the like is read and various processes are carried out, light beams emitted from a fluorescent lamp or other light source is irradiated onto the original. Reflected light beams are incident onto a light receiving station equipped with a photoelectric converter device such as CCD (Charge-Coupled Device) or the like. In the image reader of the original stationary type, while the light source lamp is moved with respect to the original which is placed on the platen glass, the light beams from the light source lamp irradiates the original. In addition, the optical path length from the original to the light receiving station must be kept even when the position of the original being irradiated varies. Reflectors provided for leading the reflected light beams to the light receiving station and an inverter circuit for operating the light source lamp must be moved together with the light source lamp along the original.
The inverter circuit and the light source lamp are mounted on a carriage which is movably provided in the casing of the image reader. A structure for mounting the inverter circuit on the carriage was previously proposed by the applicant of the present invention, in the image reader of Japanese Patent Application No. 11-263025. In this image reader, the inverter circuit is disposed at end portions of the carriage in the longitudinal direction thereof, and further the components of the inverter circuit are divided and disposed at both end portions.
It is sometimes necessary for the light source lamp or the inverter circuit to be replaced because they have reached their life span, or because they have been damaged. In image readers of the prior art, when the inverter circuit and the like have to be replaced, the carriage onto which they are mounted has to be removed from the main body of the image reader, and the part which is to be changed has to be removed from the carriage, and then replaced with the new part. This is because the inverter circuit board is fixed with screws onto the base plate of the carriage. Providing these screws on the roof plate of carriage, and fixing the inverter circuit board thereto has been considered, but the head portion of the screws protrude upward and thus it is necessary to provide a corresponding amount of space for the head portions of the screws, and the distance between the light source lamp and the original is increased, thus reducing the intensity of light which is radiated onto the original.
When the carriage is removed in order to replace the inverter circuit as described above, the wires connected to the carriage for operating the carriage must also be removed and thus the work of removing the circuits is very complex. In addition, when the inverter circuit is mounted once again into the main body, adjustments must be carried out and this further increases the difficulty of the work of replacing the inverter circuit.
Further, as in the image reader proposed in Japanese Patent Application No. 11-263025 , when the structure is such that component parts of the inverter circuit are divided and disposed at both end portions of the carriage, the respective component parts which have been divided have to be removed from both ends of the carriage, and thus the work of removing the circuits as well as the work of mounting them may be very complex.
SUMMARY OF THE INVENTION
A main object of this invention is to provide a mounting structure for an inverter circuit board for a light source lamp of an image reader in which the replacement of the inverter circuit can be easily carried out without the need for removing the carriage from the main body without the need for carrying out operational adjustments of the apparatus. Further, it is necessary to irradiate the original with an appropriate amount of light beam from the light source lamp, but in order to do this, it is necessary to carry out adjustment of the light beam intensity by changing the resistance value of a variable resistor. Another object of the invention is to provide a mounting structure for an inverter circuit board for a light source lamp of an image reader in which this adjustment of the light beams amount can be easily carried out.
The technical means for achieving the above objects is the mounting structure for an inverter circuit board for a light source lamp of an image reader according to this invention, in which the image reader comprises a carriage which moves along an original placed on a platen glass. On the carriage is mounted a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated. The light beams reflected from the original are picked up and an image formed on the original is read, wherein mounting means for mounting onto the carriage an inverter circuit board having an inverter circuit for a light source lamp installed thereon, can be operated from the direction in which the carriage moves.
In order to replace the inverter circuit for the light source lamp, the circuit board is removed from either of the directions of movement of the carriage and the inverter circuit replaced. The direction for removing the board is set to be one of the directions of movement of the carriage. Thus, when the inverter circuit is to be replaced, it is not necessary to remove the carriage from the main body, and the work of replacing the inverter circuit is simplified.
Further, in a mounting structure for an inverter circuit board for a light source lamp of an image reader which takes into consideration the dissipation of heat which is generated from the inverter circuit as the luminance of the light source lamp is increased, a heat dissipation plate is mounted to an end portion of the carriage on a side in the direction in which the carriage moves, and the circuit board is removably mounted to the heat dissipation plate.
In recent years, there has been a demand for image data to be picked up more precisely, and for detailed image data to be obtained for dark originals. Thus a high intensity lamp has been used as the light source lamp. As a result the amount of heat generated from the inverter circuit is large and this heat must be effectively dissipated. Dissipation of the heat is accomplished by providing a heat dissipation plate. Also, the heat dissipation plate is mounted at an end portion of the carriage at a side in the direction of movement thereof, and the circuit board can be mounted onto this heat dissipation plate. As a result, the circuit board is attachable and removable from the direction of movement of the carriage, and also the heat generated at the circuit board is effectively dissipated.
In a mounting structure for an inverter circuit board for a light source lamp of an image reader in which the work of adjusting the light beams amount of the light source lamp can be easily carried out, the image reader comprises a carriage which moves along an original placed on a platen glass. On the carriage is mounted a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original is picked up and an image formed on the original is read, and adjusting means are provided for adjusting the intensity of the light beams from the light source lamp in the direction in which the carriage moves.
The intensity of the light beams from the light source lamp can be automatically adjusted in accordance with the lightness or darkness of an image formed on the original, but light beams adjustment is necessary in preparation for this. As a result, means for adjusting the light beams amount, such as a variable resistor, is used in driving the light source lamp. By operating the variable resistor, the light beam intensity can be adjusted. Operation of the light beams amount adjusting means can be carried out from the direction in which the carriage moves. For this reason, adjustment of the light beams amount can be carried out without the need to remove the carriage from the main body of the image reader, and also without the need for removing the inverter circuit board from the carriage.
Further, the complexity of the mounting structure for an inverter circuit board for a light source lamp in which the work of adjusting the intensity of the light beams from the light source lamp is reduced. The image reader comprises a carriage which moves along an original placed on a platen glass, and on the carriage is mounted a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated. The light beams reflected from the original are picked up and an image formed on the original is read. The operation of the adjusting means for adjusting the light beams amount of the light source lamp is carried out from above the carriage.
In particular, in the case where a variable resistor is used as the light beam amount (intensity) adjusting means, the board having the variable resistor assembled thereon, is mounted such that the back surface of the variable resistor is at the upper side, and the resistance value is adjusted through a through-hole formed on the base from the back surface side thereof. As a result, the light beams amount of the light source lamp can be adjusted without the need to remove the carriage from the main body, and without the need to remove the board onto which the light beams amount adjusting means is assembled, from the carriage.
In addition, a mounting structure for an inverter circuit board for a light source lamp in which the replacement of the inverter circuit and the work of adjusting the light beams amount of the light source lamp is reduced. The mounting means for mounting onto the carriage, the inverter circuit board having the inverter circuit, and adjusting means for the light beam source lamp installed thereon can be adjusted from the direction in which the carriage moves.
By the operation of the mounting means of the carriage being carried out from the direction of movement of said carriage, the circuit board can be mounted thereto so as to be removable. In addition, the adjustment of the light beams amount can be carried out in the direction of movement of the carriage or from above the carriage. The light beams amount adjusting means is assembled onto the board which the inverter circuit for the light source lamp is installed, and in the case where the light beams adjustment is carried out from above the carriage, a through-hole is formed in the board and operation is carried out from the back side of the board.
Further, in a mounting structure for an inverter circuit board for a light source lamp for an image reader in which the replacement of the inverter circuit and the work of adjusting the light beams amount of the light source lamp is reduced and which takes into consideration the dissipation of heat which is generated from the inverter circuit as the luminance of the light source lamp is increased, the operation of the light beams amount adjusting means can be carried out in the direction of movement of the carriage or from above the carriage, and a heat dissipation plate is mounted to one end of the carriage at a side in the direction of movement thereof. Because the inverter circuit board is attached to the heat dissipation plate so as to be removable, the inverter circuit board can be operated from the direction of movement of the carriage. Also, because the inverter circuit board of the light source lamp is mounted to the heat dissipation plate, heat generated from the inverter circuit is effectively diffused.
These and other features, objects and advantages of the present invention will become apparent upon reading the following description thereof together with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view of a carriage having a mounting structure for an inverter circuit board for a light source lamp according to the present invention;
FIG. 2 is a front view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention;
FIG. 3 is a right side exploded view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention, and includes the inverter circuit prior to mounting;
FIG. 4 is a top plan view of a carriage having a mounting structure for an inverter circuit board for a light source lamp according to another embodiment of the present invention;
FIG. 5 is a front view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the embodiment of the present invention shown in FIG. 4;
FIG. 6 is a right side exploded view of the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the embodiment of the present invention, and includes the inverter circuit prior to mounting; and
FIG. 7 is a perspective schematic view for of an image reader equipped the carriage having the mounting structure for an inverter circuit board for a light source lamp according to the present invention.
 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 7 is a schematic structure of the image reader 1 to which the mounting structure for the inverter circuit board is applied. Two guide plates, 2 b and 2 e, which are configured as shelves, are provided at the inner surface of walls 2 a, which walls 2 a extend in the longitudinal direction of a casing 2 of the image reader 1. A full rate carriage 3 and a half rate carriage 4 are respectively placed on the guide plates 2 b and 2 e and are guided by the guide plates 2 b and 2 e so as to move in the longitudinal direction of the casing 2. Also, a platen glass (not shown) is mounted on the upper surface of the casing 2, and originals are placed on this platen glass. A light source lamp 5, such as a fluorescent lamp is mounted on the full rate carriage 3. The original is irradiated by the light source lamp 5. In addition, an image focusing lens 6 and a photoelectric converter device 7, such as a CCD (Charge Coupled Device) or the like, are provided at an appropriate position on the bottom plate 2 c of the casing 2.
A first reflector (not shown) is provided on the full rate carriage 3, and on the half rate carriage 4, a second reflector and a third reflector (also not shown) are provided, and light emitted from the light source lamp 5 and reflected on the original is reflected in sequence at the first reflector, and then at the second reflector and the third reflector in a conventional manner. The light beams are then transmitted through the image focusing lens 6 and impinge upon the photoelectric converter device 7. An optical path is thus formed by the first reflector and the second and third reflectors, from where the light beams are reflected onto the original until it reaches the photoelectric converter device 7. When the image information on the original is to be read, the entire area of the original must be irradiated. Thus, the full rate carriage 3 is movable along the entire area of the platen glass. The above optical path from the original to the photoelectric converter device 7 is kept at a constant length even though the full rate carriage 3 moves. The optical path is maintained at a constant length by synchronizing the movement of the half rate carriage 4 with that of the full rate carriage 3 under conditions in which the movement of the half rate carriage 4 is set to almost half of the movement of the full rate carriage 3.
The full rate carriage 3, which mounts on the light source lamp 5, also carries an inverter circuit for driving the light source lamp 5. FIG. 1 is a top plan view of the full rate carriage 3, FIG. 2 is a front view thereof, and FIG. 3 is a side view which includes the inverter circuit 10 before it is mounted. The full rate carriage 3 whose frame 8 is appropriately formed, carries the light source lamp 5 (FIGS. 1 and 3) and the inverter circuit 10 on the frame 8.
The inverter circuit 10 is assembled on an inverter circuit board 11 (FIG. 3), which is mounted on a heat dissipation plate 12, as seen in FIG. 3. The heat dissipation plate is mounted by fixing screws 13 (FIG. 1) which extend through holes 8 b (FIG. 2) formed in the front side wall 8 a of the frame 8. The inverter circuit 10 and the light source lamp 5 are conventionally connected by an electrical cable and connector, which are not shown. Further, a variable resistor 16 (FIGS. 2 and 3) is mounted to the inverter circuit board 11 and serves as light beam intensity adjusting means. An operating portion 16 a thereof is clear of the front side wall 8 a, as best seen in FIG. 2.
The effects of the mounting structure for the inverter circuit board 11 for the light source lamp 5 for an image reader having a structure according to the embodiment of the present invention illustrated in FIGS. 1 to 3 is now described. When the inverter circuit 10 is to be removed from the full rate carriage 3 for the purpose of being replaced or the like, the connector which connects the inverter circuit 10 to the light source lamp 5 is removed, and then the fixing screws 13 are loosened and removed. The heat dissipation plate 12 and the inverter circuit board 11 can then be removed together. Also, the inverter circuit board 11 may be removed from the heat dissipation plate 12 and, the inverter circuit board 11 having assembled thereon the new inverter circuit 10, can be mounted to the heat dissipation plate 12. This heat dissipation plate 12 is then fixed to the front side wall 8 a by tightening the fixing screw 13.
In order to adjust the light beam intensity of the light source lamp 5, as illustrated in FIG. 1, a tool 17 such as a screwdriver can be used to turn the operating portion 16 a of the variable resistor 16. As a result, the resistance value of the variable resistor 16 can be changed, and the intensity of the light beams from the light source lamp 5 is thereby changed. The resistance value can therefore be adjusted such that the light beam intensity is appropriate.
Another embodiment of the present invention is described in FIGS. 4 to 6. In these FIGS., the parts which are the same as those of the embodiment illustrated in FIGS. 1 to 3 are assigned the same numbers, and thus descriptions thereof are omitted. In this embodiment, a variable resistor 18 is mounted as the light beam adjusting means, to the inverter circuit board 11. The variable resistor 18 is a part of the inverter circuit board 11, and a through-hole is formed in the portion of the inverter circuit board 11 to which the variable resistor 18 is mounted. An operating portion 18 a of the variable resistor 18 is exposed through this through-hole.
In the embodiment illustrated in FIGS. 4 to 6, in order to adjust the light beam intensity of the light source lamp 6, as illustrated in FIG. 5, a tool 17 such as a screwdriver can be used from above the full rate carriage 3, to turn operating portion 18 a of the variable resistor 18. As a result, the resistance value of the variable resistor 18 is changed, and the intensity of the light beams from the light source lamp 6 is thereby changed to an appropriate level.
As described above, in the mounting structure for the inverter circuit board for a light source lamp for an image reader according to the present invention, the inverter circuit board can be removed from the carriage if the mounting means for the inverter circuit board is applied by operating the mounting means from the direction of movement of the carriage. Further, when the inverter circuit board is to be mounted, it can be mounted by operating the mounting means from the direction of movement of the carriage. As a result, when the inverter circuit is to be replaced, there is no need to remove the carriage from the main body. In addition, it becomes unnecessary to mount the carriage into the main body again after having removed it, and thus it is not necessary to carry out adjustment work after the carriage has been mounted once again. Accordingly, the labor of replacing the inverter circuit is reduced.
Further, a heat dissipation plate is mounted on the carriage at an end portion at a side in the direction in which the carriage moves. The circuit board is mounted so as to be removable from the heat dissipation plate, and thus, the heat dissipation plate causes dissipation of heat generated by the inverter circuit to be accelerated, and thus the inverter circuit can be effectively cooled. Accordingly, even when a high intensity light source lamp is required, the inverter circuit can be stably operated. Since operation of the means adjusting the light beam intensity of the light source lamp can be carried out from the direction of movement of the carriage, or from above the carriage, the work of adjusting the intensity of the light beams can be easily carried out.
In addition, according to the mounting structure for the inverter circuit board for a light source lamp for an image reader in which operation of the means for adjusting the intensity of the light beams of the light source lamp can be carried out from the direction of movement of the carriage or from above the carriage, and also the mounting means for mounting the inverter circuit board having the inverter circuit for the light source lamp installed on the carriage can be operated from the direction in which the carriage moves. As a result, the labor of replacing the inverter circuit can be carried out easily, and also the labor of adjusting the intensity of the light beams from the light source lamp can be done easily.
Further, according to the mounting structure for the inverter circuit board for a light source lamp for an image reader, in which operation of the means for adjusting the intensity of the light beams of the light source lamp can be carried out from the direction of movement of the carriage or from above the carriage, and a heat dissipation plate is mounted to the carriage at an end portion thereof at the side in the direction of movement of the carriage, and the inverter circuit board is mounted to the heat dissipation plate so as to be removable therefrom. Thus, the inverter circuit board can be operated from the direction of movement of the carriage, and the heat dissipation plate causes heat generated by the inverter circuit to be effectively dissipated. Accordingly, even if a high intensity light source lamp is required, the inverter circuit can be stably operated.
It will become apparent to those skilled in the art that various modifications to the preferred embodiment of the invention as described herein can be made without departing from the spirit or scope of the invention as defined by the appended claims.

Claims (10)

1. A mounting structure for an inverter circuit board for a light source lamp of an image reader comprising:
a carriage having ends which move along an original placed on a platen glass;
a light source lamp on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original are picked up and an image formed on the original is read; and
mounting means for removably mounting an inverter circuit board having an inverter circuit for said light source lamp installed thereon on a heat dissipation plate on an end of said carriage, such that said mounting means is accessed from the direction in which said carriage moves.
2. A mounting structure for an inverter circuit board for a light source lamp of an image reader comprising:
a carriage having ends which move along an original placed on a platen glass;
a light source lamp on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original are picked up and an image formed on the original is read;
mounting means for mounting on an end of said carriage an inverter circuit board having an inverter circuit for said light source lamp installed thereon, such that said mounting means is accessed from the direction in which said carriage moves; and
a heat dissipation plate mounted to said end of said carriage in the direction in which said carriage moves, wherein said circuit board is removably mounted to said heat dissipation plate.
3. A mounting structure for an inverter circuit board for a light source lamp of an image reader comprising:
a carriage having ends which move along an original placed on a platen glass;
a light source lamp on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original are picked up and an image formed on the original is read;
mounting means for removably mounting an inverter circuit board having an inverter circuit for the light source lamp installed thereon to a heat dissipation plate arranged such that said mounting means can be accessed from above said carriage; and
an intensity adjusting variable resistor coupled to said light source lamp for adjusting the intensity of the light beams from said light source lamp.
4. A mounting structure for an inverter circuit board for a light source lamp of an image reader comprising:
a carriage having ends which move along an original placed on a platen glass;
a light source lamp on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light beams reflected on the original are picked up and an image formed on the original is read; and
mounting means for mounting on said carriage an inverter circuit board having an inverter circuit for the light source lamp installed thereon arranged such that said mounting means is accessed from above said carriage, wherein said inverter circuit board includes intensity adjusting means for the light source lamp which is accessed from the direction in which the carriage moves.
5. The mounting structure for an inverter circuit board for a light source lamp of an image reader as defined in claim 4, wherein a heat dissipation plate is mounted to an end of said carriage in the direction in which the carriage moves, and the circuit board is removably mounted to the heat dissipation plate, and thus the circuit board is operated from the direction in which the carriage moves.
6. A mounting structure for an inverter circuit board for a light source lamp of an image reader, the image reader comprising:
a carriage which moves along an original placed on a platen glass;
a light source lamp mounted on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light reflected on the original is picked up, and an image formed on the original is read, wherein the improvement comprises:
an intensity adjusting means for adjusting the intensity of the light beams from said light source lamp from the direction in which the carriage moves, wherein said mounting means for mounting said inverter circuit board having the inverter circuit for the light source lamp installed thereon is accessed from the direction in which the carriage moves; and
wherein a heat dissipation plate is mounted to an end of said carriage in the direction in which the carriage moves, and the circuit board is removably mounted to the heat dissipation plate, and thus the circuit board is operated from the direction in which the carriage moves.
7. A mounting structure for an inverter circuit board for the light source lamp of an image reader comprising a carriage which moves along an original placed on a platen glass, wherein said carriage includes a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated and are reflected to a reader comprising:
mounting means for removably mounting an inverter circuit board having an inverter circuit for a light source lamp on a heat dissipation plate on an end of said carriage in a direction in which the carriage moves.
8. A mounting structure for an inverter circuit board for the light source lamp of an image reader comprising a carriage which moves along an original placed on a platen glass, wherein said carriage includes a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated and are reflected to a reader, the mounting structure comprising:
mounting means for mounting the inverter circuit board having an inverter circuit for said light source lamp on an end of said carriage in a direction in which the carriage moves and further including a heat dissipation plate mounted to said end of said carriage in a direction in which the carriage moves, and said circuit board being removably mounted to said head dissipation plate.
9. A mounting structure for an inverter circuit board for the light source lamp of an image reader, the image reader comprising:
a carriage having a top facing a platen glass;
the carriage moving along an original placed on the platen glass, wherein said carriage includes a light source lamp whose light beams are moved along the original such that the original is sequentially irradiated and are reflected to the reader comprising:
mounting means for mounting the inverter circuit board having an inverter circuit for said light source lamp on the top of said carriage.
10. The mounting structure for an inverter circuit board for a light source lamp of an image reader as defined in claim 9 and further including a heat dissipation plate mounted to said top of the carriage and said circuit board being removably mounted to said heat dissipation plate.
US10/106,158 2001-03-30 2002-03-26 Mounting structure for inverter circuit board for light source lamp of image reader Expired - Fee Related US7202980B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/561,091 US20070086066A1 (en) 2001-03-30 2006-11-17 Mounting structure for inverter circuit board for light source lamp of image reader

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001102631A JP2002296703A (en) 2001-03-30 2001-03-30 Attaching structure for inverter circuit board for light source lamp of image reader
JP2001-102631 2001-03-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/561,091 Continuation US20070086066A1 (en) 2001-03-30 2006-11-17 Mounting structure for inverter circuit board for light source lamp of image reader

Publications (2)

Publication Number Publication Date
US20020141167A1 US20020141167A1 (en) 2002-10-03
US7202980B2 true US7202980B2 (en) 2007-04-10

Family

ID=18955797

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/106,158 Expired - Fee Related US7202980B2 (en) 2001-03-30 2002-03-26 Mounting structure for inverter circuit board for light source lamp of image reader
US11/561,091 Abandoned US20070086066A1 (en) 2001-03-30 2006-11-17 Mounting structure for inverter circuit board for light source lamp of image reader

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/561,091 Abandoned US20070086066A1 (en) 2001-03-30 2006-11-17 Mounting structure for inverter circuit board for light source lamp of image reader

Country Status (2)

Country Link
US (2) US7202980B2 (en)
JP (1) JP2002296703A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160650A1 (en) * 2003-01-30 2004-08-19 Toshiba Tec Kabushiki Kaisha Image reading apparatus
US20050063022A1 (en) * 2003-05-30 2005-03-24 Kyocera Mita Corporation Image reading apparatus
US20050243540A1 (en) * 2004-04-29 2005-11-03 Lg.Philips Lcd Co., Ltd. Inverter cover shield for liquid crystal display module
US20050243385A1 (en) * 2004-04-28 2005-11-03 Sang-Yob Shin Transferring guide device usable with image reading sensor unit and scanning apparatus having the same
US20060029429A1 (en) * 2004-08-06 2006-02-09 Wen-Bin Peng Structure of a carriage module
US20060077473A1 (en) * 2004-08-16 2006-04-13 Consie Chen Computer device
US20070086066A1 (en) * 2001-03-30 2007-04-19 Eiichi Hayashi Mounting structure for inverter circuit board for light source lamp of image reader
US7256914B1 (en) * 2006-03-31 2007-08-14 Primax Electronics Ltd. Optical scanner
US20070211492A1 (en) * 2006-03-09 2007-09-13 Gigno Technology Co., Ltd. Backlight module and driving circuit board of light emitting diodes
US20110096374A1 (en) * 2009-10-22 2011-04-28 Fuji Xerox Co., Ltd. Image Reading Apparatus and Image Forming Apparatus
US20140071500A1 (en) * 2012-09-11 2014-03-13 Kyocera Document Solutions Inc. Image reading apparatus and image forming apparatus having the same
US9413909B2 (en) * 2014-10-29 2016-08-09 Fuji Xerox Co., Ltd. Image reading apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390265A (en) * 1977-12-21 1983-06-28 Canon Kabushiki Kaisha Image forming apparatus
JPH06268814A (en) * 1993-03-16 1994-09-22 Rohm Co Ltd Image sensor
US6133565A (en) * 1997-08-12 2000-10-17 Rohm Co., Ltd. Image reading apparatus
US6445836B1 (en) * 1997-03-18 2002-09-03 Fujitsu Limited Image processing apparatus
US6704126B1 (en) * 1999-09-17 2004-03-09 Fuji Photo Optical Co., Ltd. Image processor
US6879414B2 (en) * 2001-02-02 2005-04-12 Kabushiki Kaisha Toshiba Scanner unit and carriage therefor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002296703A (en) * 2001-03-30 2002-10-09 Fuji Photo Optical Co Ltd Attaching structure for inverter circuit board for light source lamp of image reader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390265A (en) * 1977-12-21 1983-06-28 Canon Kabushiki Kaisha Image forming apparatus
JPH06268814A (en) * 1993-03-16 1994-09-22 Rohm Co Ltd Image sensor
US6445836B1 (en) * 1997-03-18 2002-09-03 Fujitsu Limited Image processing apparatus
US6133565A (en) * 1997-08-12 2000-10-17 Rohm Co., Ltd. Image reading apparatus
US6704126B1 (en) * 1999-09-17 2004-03-09 Fuji Photo Optical Co., Ltd. Image processor
US6879414B2 (en) * 2001-02-02 2005-04-12 Kabushiki Kaisha Toshiba Scanner unit and carriage therefor

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070086066A1 (en) * 2001-03-30 2007-04-19 Eiichi Hayashi Mounting structure for inverter circuit board for light source lamp of image reader
US20080043298A1 (en) * 2003-01-30 2008-02-21 Kabushiki Kaisha Toshiba Image reading apparatus
US20040160650A1 (en) * 2003-01-30 2004-08-19 Toshiba Tec Kabushiki Kaisha Image reading apparatus
US7349132B2 (en) * 2003-01-30 2008-03-25 Kabushiki Kaisha Toshiba Image reading apparatus
US20050063022A1 (en) * 2003-05-30 2005-03-24 Kyocera Mita Corporation Image reading apparatus
US7961363B2 (en) * 2003-05-30 2011-06-14 Kyocera Mita Corporation Image reading apparatus
US7567365B2 (en) * 2003-05-30 2009-07-28 Kyocera Mita Corporation Image reading apparatus
US20090168121A1 (en) * 2003-05-30 2009-07-02 Kyocera Mita Corporation Image reading apparatus
US7936486B2 (en) * 2004-04-28 2011-05-03 Samsung Electronics Co., Ltd. Transferring guide device usable with image reading sensor unit and scanning apparatus having the same
US20050243385A1 (en) * 2004-04-28 2005-11-03 Sang-Yob Shin Transferring guide device usable with image reading sensor unit and scanning apparatus having the same
US20050243540A1 (en) * 2004-04-29 2005-11-03 Lg.Philips Lcd Co., Ltd. Inverter cover shield for liquid crystal display module
US8057089B2 (en) * 2004-04-29 2011-11-15 Lg Display Co., Ltd. Inverter cover shield for liquid crystal display module
US7532371B2 (en) * 2004-08-06 2009-05-12 Lite-On Technology Corporation Structure of a carriage module
US20060029429A1 (en) * 2004-08-06 2006-02-09 Wen-Bin Peng Structure of a carriage module
US20060077473A1 (en) * 2004-08-16 2006-04-13 Consie Chen Computer device
US20070211492A1 (en) * 2006-03-09 2007-09-13 Gigno Technology Co., Ltd. Backlight module and driving circuit board of light emitting diodes
US7256914B1 (en) * 2006-03-31 2007-08-14 Primax Electronics Ltd. Optical scanner
US20110096374A1 (en) * 2009-10-22 2011-04-28 Fuji Xerox Co., Ltd. Image Reading Apparatus and Image Forming Apparatus
US20140071500A1 (en) * 2012-09-11 2014-03-13 Kyocera Document Solutions Inc. Image reading apparatus and image forming apparatus having the same
US8891141B2 (en) * 2012-09-11 2014-11-18 Kyocera Document Solutions Inc. Image reading apparatus and image forming apparatus having the same
US9413909B2 (en) * 2014-10-29 2016-08-09 Fuji Xerox Co., Ltd. Image reading apparatus

Also Published As

Publication number Publication date
US20070086066A1 (en) 2007-04-19
JP2002296703A (en) 2002-10-09
US20020141167A1 (en) 2002-10-03

Similar Documents

Publication Publication Date Title
US20070086066A1 (en) Mounting structure for inverter circuit board for light source lamp of image reader
US4873579A (en) Image information reading apparatus
US5038028A (en) Optical scanner aperture and light source assembly
US4704638A (en) Image information reading device
KR100499616B1 (en) Illumination apparatus and image reading apparatus
US7123389B2 (en) Image reading unit and image reading apparatus using the same
US7428080B2 (en) Image reading apparatus, method of controlling image reading apparatus, program, and computer readable storage medium
US9554011B2 (en) Light irradiator, image reader and image forming apparatus
JPS604368A (en) Optical reader
US6684044B2 (en) Light source lamp for image reader
US7349132B2 (en) Image reading apparatus
US20040009005A1 (en) Image reading apparatus
JP5811595B2 (en) Document illumination device, image reading device, and image forming device
JP5724374B2 (en) Document illumination device, image reading device, and image forming device
JPS61195073A (en) Picture information reader
JP2016181878A (en) Image reading device and image forming apparatus
US20020139852A1 (en) Casing structure of image reader
JP2814114B2 (en) Transparent original reading device and transparent original holding member
JP6415336B2 (en) Image reading apparatus, image forming apparatus including the same, and image reading method
JP3800014B2 (en) Image reading device
JP2966139B2 (en) Lighting equipment for electronic components
JPS619072A (en) Picture information reader
JPH06308627A (en) Image reader
JP2011049827A (en) Image reader
JPS61195070A (en) Picture information reader

Legal Events

Date Code Title Description
AS Assignment

Owner name: FUJI PHOTO OPTICAL CO., LTD, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAYASHI, EIICHI;REEL/FRAME:012907/0988

Effective date: 20020411

AS Assignment

Owner name: FUJINON CORPORATION, JAPAN

Free format text: CHANGE OF NAME;ASSIGNOR:FUJI PHOTO OPTICAL CO., LTD.;REEL/FRAME:015968/0605

Effective date: 20041001

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Expired due to failure to pay maintenance fee

Effective date: 20110410